/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package servlets.gp.patient;

import be.ugent.medirem.logic.GpRemote;
import be.ugent.medirem.logic.PatientRemote;
import be.ugent.medirem.logic.PrescriptionRemote;
import be.ugent.medirem.persistence.entity.details.ConsultationDetails;
import be.ugent.medirem.persistence.entity.details.LocationDetails;
import be.ugent.medirem.persistence.entity.details.PatientDetails;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Simon
 */
public class MainGpPatientServlet extends HttpServlet {

    @EJB
    private GpRemote gpBean;
    @EJB
    private PrescriptionRemote prescriptionBean;
    @EJB
    private PatientRemote patientBean;

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String username = request.getUserPrincipal().getName();
        Long gpId = gpBean.getGpId(username);
        Long pId = (Long) request.getSession().getAttribute("pid");
        if (pId == null || pId == 0) {
            response.sendRedirect(request.getContextPath() + "/gp/patient/list");
            return;
        }
        try {
            PatientDetails p = patientBean.getPatientDetails(pId);
            LocationDetails l = patientBean.getLocationDetails(pId);

            int nrPrescriptions = prescriptionBean.getPrescriptions(pId).size();

            ConsultationDetails c = gpBean.getNextConsultation(gpId, pId);
            if (c != null) {
                p.setNextConsultation(c.getDate());
            }
            c = gpBean.getLastConsultation(gpId, pId);
            if (c != null) {
                p.setLastConsultation(c.getDate());
            }


            request.setAttribute("patient", p);
            request.setAttribute("location", l);
            request.setAttribute("patientid", pId);
            request.setAttribute("nrPrescriptions", nrPrescriptions);

        } catch (Exception ex) {
            Logger.getLogger(MainGpPatientServlet.class.getName()).log(Level.SEVERE, null, ex);
            request.getSession().setAttribute("flash", "An error occured when getting the patient information!");
        }
        request.getRequestDispatcher("/gp/patient/main.jsp").forward(request, response);
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
